Results 1 to 10 of about 32,552 (250)

An optimal transmission line power control under non‐sinusoidal conditions using static synchronous series compensator

open access: yesIET Generation, Transmission & Distribution, 2021
In view of the growing load demand in developing countries, overloading in existing transmission lines is a major concern. In addition to the voltage drop due to overloading, the proliferation of non‐linear loads in recent years distort the shape of ...
Shruti Nema, Sincy George
doaj   +1 more source

Submodule Capacitor Voltage Ripple Reduction of Full-Bridge Submodule-Based MMC (FBSM-MMC) with Non-Sinusoidal Voltage Injection

open access: yesEnergies, 2023
The full-bridge submodule (FBSM)-based modular multilevel converter (FBSM-MMC) offers promising performance due to its ability to output negative FBSM voltage.
Ming Huang
doaj   +1 more source

Improved Harmonic Mitigation Using Dual Three-Phase iUPQC [PDF]

open access: yesE3S Web of Conferences
This study simplifies iUPQC administration by employing a dual three-phase design, which makes the methodology behind the study more transparent. By utilising a parallel (shunt) and series active filter, it is possible to limit the amount of harmonics ...
Kumar Y. Anil   +5 more
doaj   +1 more source

Effects of Non-Sinusoidal Motion and Effective Angle of Attack on Energy Extraction Performance of a Fully-Activated Flapping Foil

open access: yesJournal of Applied Fluid Mechanics, 2021
Flapping foil energy harvesting systems are considered as highly competitive devices for conventional turbines. Several research projects have already been carried out to improve performances of such new devices. This paper is devoted to study effects of
A. Boudis   +5 more
doaj  

Analysis and Demonstration of Control Scheme for Multiple Operating Modes of Energy Storage Converters to Enhance Power Factor

open access: yesMathematics, 2022
Rectifiers are required by the devices connected to the distribution end of the electrical power networks for AC/DC conversion. The line current becomes non-sinusoidal when a capacitor with a significant value is used to mitigate the output voltage ...
Khalid Javed   +2 more
doaj   +1 more source

Geometric Algebra Applied to Multiphase Electrical Circuits in Mixed Time–Frequency Domain by Means of Hypercomplex Hilbert Transform

open access: yesMathematics, 2022
In this paper, power flows in electrical circuits are modelled in a mixed time-frequency domain by using geometric algebra and the Hilbert transform for the first time.
Francisco G. Montoya   +4 more
doaj   +1 more source

Geometric Algebra Power Theory (GAPoT): Revisiting Apparent Power under Non-Sinusoidal Conditions

open access: yesCoRR, 2020
Traditional power theories and one of their most important concepts --apparent power-- are still a source of debate and, as shown in the literature, they present several flaws that misinterpret the power-transfer phenomena under distorted grid conditions.
Francisco Gil Montoya   +4 more
openaire   +2 more sources

Effect of Side-Walls on Flapping-Wing Power-Generation: an Experimental Study

open access: yesJournal of Applied Fluid Mechanics, 2016
Effect of constrained flow is investigated experimentally for a flapping foil power-generator. The flow structures around and in the near wake of a flat plate placed between two side walls are captured via PIV technique with simultaneous direct force ...
Ferhat Karakas, Idil Fenercioglu
doaj  

Alternative definitions of energy for power meters in non-sinusoidal systems

open access: yesInternational Journal of Electrical Power & Energy Systems, 2015
Abstract Energy flow in sinusoidal systems is analyzed without problems by means of the traditional power definitions such as: apparent, active, and reactive, but these definitions are not properly applied in nonlinear loads. These loads present several distortions which are not correctly measured with the prevailing instruments designed for ...
M. Ponce-Silva, E.A. Moreno-Basaldúa
openaire   +1 more source

Power Quality Measurement Under Non-Sinusoidal Condition

open access: yes, 2011
The interest on problems related to non linear devices and their influence on the systems increased considerably since 1980. This is due to the development of new power semiconductor devices and, as a consequence, the development of new converters that increment the non linearity in electric power signals substantially (Arrillaga et al., 1995). Several
Magnago Fernando   +2 more
openaire   +2 more sources

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